2a and b8
A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 6145-00-754-8159
NSN 5935-00-753-5101
NSN 6220-01-515-0931
NSN 5985-00-086-8757
NSN 6685-00-139-9681
NSN 5925-00-433-1966
NSN 2925-01-400-2286
NSN 6240-01-355-9699
NSN 6685-00-092-5612
NSN 5999-01-188-2685
NSN 6110-00-317-8063
NSN 5990-00-814-2533